调用阿里短信官方SDK有时候出现错误：HTTP Status: 400 RequestID:

以下是抓到的其中一个错误的日志

Wed, 27 Jun 18 16:25:25 +0800
{

"file":"\/data\/wwwroot\/api.ljbao.net\/App\/Libs\/SMS\/aliyun\/api_sdk\/lib\/Core\/DefaultAcsClient.php",
"line":105,
"code":0,
"msg":" HTTP Status: 400 RequestID: ",
"trace":"
    #0 \/data\/wwwroot\/api.ljbao.net\/App\/Libs\/SMS\/aliyun\/api_sdk\/lib\/Core\/DefaultAcsClient.php(26): Aliyun\\Core\\DefaultAcsClien     t->buildApiException(NULL, 400)\n
    #1 \/data\/wwwroot\/api.ljbao.net\/App\/Libs\/SMS\/AliyunSMS.php(111): Aliyun\\Core\\DefaultAcsClient->getAcsResponse(Object(Aliyun\\Api\\Sms     \\Request\\V20170525\\SendSmsRequest))\n
    #2 \/data\/wwwroot\/api.ljbao.net\/App\/Libs\/SMS\/SMSHelper.php(61): Vokuro\\App\\Libs\\SMS\\AliyunSMS->sendSms('13818168217', '\\xE7     \\xAB\\x8B\\xE5\\x90\\x89\\xE6\\x8A\\xA5', 'SMS_135044866', Array, '', '')\n
    #3 \/data\/wwwroot\/api.ljbao.net\/App\/Repositories\/Traits\/SMSTicketTrait.php(54): Vokuro\\App\     \Libs\\SMS\\SMSHelper->sendSms('13818168217', Object(Vokuro\\App\\Libs\\SMS\\AliyunTemplate))\n
    #4 \/data\/wwwroot\/api.ljbao.net\/App\/Controllers\/V1\/SmsController.php(61):      Vokuro\\App\\Repositories\\Sms->sendSMSTicket('13818168217', '223.104.213.58')\n
    #5 [internal function]: Vokuro\\App\\Controllers\\V1\\SmsController->sendSMSTicket()\n
    #6 [int     ernal function]: Phalcon\\Mvc\\Micro\\LazyLoader->__call('sendSMSTicket', Array)\n
    #7 [internal function]: Phalcon\\Mvc\\Micro\\LazyLoader->callMethod('sendSMSTicket', Array,      NULL)\n
    #8 \/data\/wwwroot\/api.ljbao.net\/Public\/index.php(69): Phalcon\\Mvc\\Micro->handle()\n
    #9 {main}"

}

这种现象时有时无，很奇怪，求解析。